package com.example.asus.alarmservice;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import java.util.Calendar;

public class alarmServiceDemo extends AppCompatActivity implements View.OnClickListener{
    private static alarmServiceDemo appRef=null;
    private Button b_call_service,b_exit_service;
    boolean k=false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_alarm_service_demo);

        appRef=this;
        b_call_service=(Button)findViewById(R.id.call_alarm_service);
        b_call_service.setOnClickListener(this);
        b_exit_service=(Button)findViewById(R.id.exit);
        b_exit_service.setOnClickListener(this);
    }

    public static alarmServiceDemo getApp(){
        return appRef;
    }

    public void btEvent(String data){
        setTitle(data);
    }

    public void onClick(View arg0){
        if(arg0==b_call_service){
            setTitle("Waiting... Alarm=5");
            Intent intent=new Intent(alarmServiceDemo.this,AlarmReceiver.class);
            PendingIntent p_intent=PendingIntent.getBroadcast(
                    alarmServiceDemo.this,0,intent,0);
            //设置按钮等待时间
            Calendar calendar=Calendar.getInstance();
            calendar.setTimeInMillis(System.currentTimeMillis());
            calendar.add(Calendar.SECOND,3);
            //使用AlarmManager在规定时间间隔后实现提醒服务
            AlarmManager am=(AlarmManager)getSystemService(ALARM_SERVICE);
            am.set(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),p_intent);
        }

        if(arg0==b_exit_service){
            Intent intent=new Intent(alarmServiceDemo.this,AlarmReceiver.class);
            PendingIntent p_intent=PendingIntent.getBroadcast(
                    alarmServiceDemo.this,0,intent,0);
            AlarmManager am=(AlarmManager)getSystemService(ALARM_SERVICE);
            am.cancel(p_intent);
            finish();
        }
    }
}
